Fig. 6. Changes in InsP3R-3 and ZO-1 localization in MDCK cells during
calcium switch. Polarized MDCK cells were incubated for 2 hours in medium
deprived of calcium and then incubated in a calcium-containing medium for 24
hours. (A) TER measurement during this treatment; the arrow indicates the time
when the cells were renewed with calcium-containing medium. (B)
InsP3R-3 and ZO-1 localization. Bar, 10 µm.